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Hall Effect Sensor US1881EUA with Magnet

Hall Effect Sensor US1881EUA with Magnet

Item ID: 10019722

Sale Price:US$3.02

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Product Details


This kit includes US1881 and a magnet.

The US1881 is an integrated Hall effect latched sensor. Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.

The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high).


  • 3.5V to 24V DC operation voltage
  • Low current consumption
  • Temperature compensation 
  • Wide operating voltage range
  • Open-Collector pre-driver
  • 50mA maximum sinking output current
  • Reverse polarity protection
  • Lead Free Package: TO-92
  • Hall Effect Sensor Length: About 0.67inch / 1.7cm
  • Magnet Dia.: About 0.47inch / 1.2cm

Package Includes:

  • 1 x Hall Effect Sensor
  • 1 x Magnet